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Finding the Fourth Proportional to 316,547.92, 436,833.42 and 171,353

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Solution

The fourth proportional to 316,547.92, 436,833.42 and 171,353 is: 236,465.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,547.92 : 436,833.42 = 171,353 : x
  2. Step 2: Convert to fraction form
    316,547.92/436,833.42 = 171,353/x
  3. Step 3: Cross multiply
    316,547.92x = 436,833.42 × 171,353
  4. Step 4: Simplify right side
    316,547.92x = 74,852,717,017.26
  5. Step 5: Solve for x
    x = 74,852,717,017.26/316,547.92
  6. Step 6: Final answer
    x = 236,465.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.